Dielectric properties of (Sr0.8Pb0.2)TiO3-MgO composites at low and microwave frequencies

  • Yoshitaka Somiya
  • , Steven E. Perini
  • , Michael T. Lanagan
  • , Jose De Los Santos Guerra
  • , Ducinei Garcia
  • , Jose A. Eiras
  • , Amar S. Bhalla
  • , L. Eric Cross

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

(Sr0.8Pb0.2)TiO3-MgO (50:50 by weight) composites are fabricated and their dielectric properties are investigated at room temperature in the frequency range between 10 kHz and 26 GHz. Relative dielectric constant is ∼116. tan at 10 kHz is 0.0005 or less than 0.0005, but tan at higher frequencies increases to 0.006 at 4 GHz and 0.04 between 18 GHz and 26 GHz. The resonant methods show constant Q×f (Q: 1/tan , f: Frequency) ∼700 GHz in the frequency range of 2.5 GHz to 7 GHz, but the waveguide technique shows different values because of low accuracy in measuring tan .

Original languageEnglish (US)
Pages (from-to)90-101
Number of pages12
JournalIntegrated Ferroelectrics
Volume104
Issue number1
DOIs
StatePublished - 2008

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Ceramics and Composites
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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